Switch-handle.



G. W. GOODRIDGE. SWITCH HANDLE. APPLIOATION rum) no.1, 1911 1,072,224. Patented Sept.2,1913.

gm 6 m v WITNESSES INVENTOR I 1'4 ATTORNEY UNITED @TATIEti Pditlillt I OFFICE.

GILBERT W. GOOIDRIDGE, F BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE PERKINS ELECTRIC SWITCH MANUFACTURING COMPANY, OF BRIDGEPORT, CONNECTICUT,

A CORPORATION OF CONNECTICUT.

SWITCH-HANDLE.

Specification of Letters Patent.

Patented Sept. ,2, 1913.

To all whom it may concern Be it known that I, G'ILIHGIH V. (-loon- Innen, a citizen of the United States oi America, residing in the city oi? Bridgeport, in the county of Fairfield, in the State of Connecticut, have invented certain new and useful Improvements in Switch-Handles, of which the following is a specification.

My invention relates to switch handles, and particularly to a metallic handle for electric snap switches, the object of my invention being to provide a metallic switch handle of simple constructii'm adapted for use on switches of this character.

In the accompanying drawing, lligure 1 is a dropped vertical section through the switch handle parts; Fig. 2 is a dropped plan view of the same; Fig. 3 a vertical section through the parts assembled; and Fig. t is a side elevation of a switch handle.

The commonly employed switch handle for rotary snap switches is made of vulcanite or other insulating substance, which is secured in any suitable way upon the upper end of the switch spindle. These vulcanite handles are diilicult to mold without flaws entering into their composition, and even when perfectly made are at a more or less frangible nature, with the result that there is frequent breakage, rendering the switch useless until the detective handle has been replaced.

The present handle is designed to be made entirely of metal to avoid the di'llici'dties above pointed out. The constructirm illustrated comprises a winged shell 5, forming the thumb piece, which is oil'set adjacent its lower edge to form a shoulder (5 against which a closure diaphragm 7 is seated and held in place by rolling over the lower edge of the shell 5, as illustrated in Fig. 3. A central aperture 8 in the diaphragm is pro vided to permit the passage therethrough o:i' the stem 9 of the T-piece 10 which is provided with wings 11 working in the wings 19. of the thumb piece 5, thus giving freedom for a limited vertical displacement of the thumb piece with relation to the T-piece,

while insuring their rotary relation. The T-piccc 10 is :lrcquently threaded at 13 to receive the threaded end 1-.1- oi the usual switch spindle. A coiled spring 15 sur rounds the shank of the T-piece 9 and bears at its upper end against the head of the latter and at its lower end against the lhiiuble 16, ot' the closure diaphragm 7.

To facilitate the finishing of the handle, the diaphragm 7 is provided with apertures 17, which form vents and discharge openings through which any substances entering the interior oi the handle during the tinishing operation may be discharged.

To assemble the parts, the T-piecc with the coiled spring 1;) in position upon the shank 9 thereof, is inserted within the shell of the thumb key, and the closure diaphragm positioned over the shank 9 and rested against. the shoulder (3. In this position the lower edge eat the shell is rolled over to secure the diaphragm in position. Inasmuch as the shank S) is tree to pass through the central aperture 8 in the closure disk, the T-piece which is mounted upon the switch spindle is free to be drawn down within the handle by the switch mechanism in a manner well understood by those 'tan'iiliar with the art.

I claim as my invention,

A switch handle comprising a metallic shell having wings I12 and having its side walls recessed at their lower edges, a closure Iiapln'agm normally seated against said reccsscs, a threaded stem passing through said dia 'ihragm, a head for said stem shaped substantially to the inner contour oi said winged shell, in combination with a spring surrounding said. stem and engaged between said head and closure diaphragm, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

GILBERT \V. GOODll-TDGE.

\Vitnesses II. M. \Vwnnn'r, A. H. Jones.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

